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[Other] Official, Anthropic-managed directory of high quality Claude Code Plugins.

[Other] Build ultra fast, tiny, and cross-platform desktop apps with Typescript.

[Other] Don't create .gitkeep files, use .gitignore instead (2023)

[Other] Diode – Build, program, and simulate hardware

[Testing] Testing Super Mario Using a Behavior Model Autonomously

[Other] I found a useful Git one liner buried in leaked CIA developer docs

[Other] Show HN: A native macOS client for Hacker News, built with SwiftUI Hey HN! I built a native macOS desktop client for Hacker News and I&#x27;m open-sourcing it under the MIT license.<p>GitHub: <a href="https:&#x2F;&#x2F;github.com&#x2F;IronsideXXVI&#x2F;Hacker-News" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;IronsideXXVI&#x2F;Hacker-News</a><p>Download (signed &amp; notarized DMG, macOS 14.0+): <a href="https:&#x2F;&#x2F;github.com&#x2F;IronsideXXVI&#x2F;Hacker-News&#x2F;releases" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;IronsideXXVI&#x2F;Hacker-News&#x2F;releases</a><p>Screenshots: <a href="https:&#x2F;&#x2F;github.com&#x2F;IronsideXXVI&#x2F;Hacker-News#screenshots" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;IronsideXXVI&#x2F;Hacker-News#screenshots</a><p>I spend a lot of time reading HN — I wanted something that felt like a proper Mac app: a sidebar for browsing stories, an integrated reader for articles, and comment threading — all in one window. Essentially, I wanted HN to feel like a first-class citizen on macOS, not a website I visit.<p>What it does:<p>- Split-view layout — stories in a sidebar on the left, articles and comments on the right, using the standard macOS NavigationSplitView pattern.<p>- Built-in ad blocking — a precompiled WKContentRuleList blocks 14 major ad networks (DoubleClick, Google Syndication, Criteo, Taboola, Outbrain, Amazon ads, etc.) right in the WebKit layer. No extensions needed. Toggleable in settings.<p>- Pop-up blocking — kills window.open() calls. Also toggleable.<p>- HN account login — full authentication flow (login, account creation, password reset). Session is stored in the macOS Keychain, and cookies are injected into the WebView so you can upvote, comment, and submit stories while staying logged in.<p>- Bookmarks — save stories locally for offline access. Persisted with Codable serialization, searchable and filterable independently.<p>- Search and filtering — powered by the Algolia HN API. Filter by content type (All, Ask, Show, Jobs, Comments), date range (Today, Past Week, Past Month, All Time), and sort by hot or recent.<p>- Scroll progress indicator — a small orange bar at the top tracks your reading progress via JavaScript-to-native messaging.<p>- Auto-updates via Sparkle with EdDSA-signed updates served from GitHub Pages.<p>- Dark mode — respects system appearance with CSS and meta tag injection.<p>Tech details for the curious:<p>The whole app is ~2,050 lines of Swift across 16 files. It uses the modern @Observable macro (not the old ObservableObject&#x2F;Published pattern), structured concurrency with async&#x2F;await and withThrowingTaskGroup for concurrent batch fetching, and SwiftUI throughout — no UIKit&#x2F;AppKit bridges except for the WKWebView wrapper via NSViewRepresentable.<p>Two APIs power the data: the official HN Firebase API for individual item&#x2F;user fetches, and the Algolia Search API for feeds, filtering, and search. The Algolia API is surprisingly powerful for this — it lets you do date-range filtering, pagination, and full-text search that the Firebase API doesn&#x27;t support.<p>CI&#x2F;CD:<p>The release pipeline is a single GitHub Actions workflow (467 lines) that handles the full macOS distribution story: build and archive, code sign with Developer ID, notarize with Apple (with a 5-retry staple loop for ticket propagation delays), create a custom DMG with AppleScript-driven icon positioning, sign and notarize the DMG, generate an EdDSA Sparkle signature, create a GitHub Release, and deploy an updated appcast.xml to GitHub Pages.<p>Getting macOS code signing and notarization working in CI was honestly the hardest part of this project. If anyone is distributing a macOS app outside the App Store via GitHub Actions, I&#x27;m happy to answer questions — the workflow is fully open source.<p>The entire project is MIT licensed. PRs and issues welcome: <a href="https:&#x2F;&#x2F;github.com&#x2F;IronsideXXVI&#x2F;Hacker-News" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;IronsideXXVI&#x2F;Hacker-News</a><p>I&#x27;d love feedback — especially on features you&#x27;d want to see. Some ideas I&#x27;m considering: keyboard-driven navigation (j&#x2F;k to move between stories), a reader mode that strips articles down to text, and notification support for replies to your comments.

[Other] Composio powers 1000+ toolkits, tool search, context management, authentication, and a sandboxed workbench to help you build AI agents that turn intent into action.

[Other] Databricks Toolkit for Coding Agents provided by Field Engineering

[Other] 🦔 PostHog is an all-in-one developer platform for building successful products. We offer product analytics, web analytics, session replay, error tracking, feature flags, experimentation, surveys, data warehouse, a CDP, and an AI product assistant to help debug your code, ship features faster, and keep all your usage and customer data in one stack.

[Testing] ✨ Fully autonomous AI Agents system capable of performing complex penetration testing tasks

[Other] Untapped Way to Learn a Codebase: Build a Visualizer

[Other] Web Components: The Framework-Free Renaissance

[Other] The Runtime Security Layer OpenClaw needs OpenClaw is powerful because it operates with real credentials to perform real work. That same power makes it an attractive target. So we built ClawShell. It assumes agent execution is adversarial by default. Secrets are isolated behind a separate privileged process, enforced at the OS level. Even if the agent is fully hijacked, it only sees virtual identifiers. Onboarding takes less than a minute and requires no changes to OpenClaw. Apache 2.0 licensed. Written in Rust.

[API/SDK] Compliance mapping you can drop into any workflow Compliance Mapping AI (CMAI) is a drop-in, API-first service that instantly maps any text—scanner findings, policies, questionnaires, or internal controls—to 260+ laws, frameworks and regulations. Unlike platforms that require integrations, data centralization, or LLM training, CMAI is stateless, deterministic, and safe by design. Ideally used in pipelines as a drop-in API to map findings to regulatory frameworks and controls in real-time adding context to destination products.

[Other] Prepare cases. Structure arguments. Never miss a point. Liznr Legal is an AI assistant built for lawyers and advocates. It keeps you case-ready by structuring hearings, discussions, and notes into clear insights. Liznr supports cross-examination, standard legal checklists, and argument preparation with accurate citations so you walk into every hearing focused on strategy, not memory.

[API/SDK] A fast, modern and comprehensive API testing tool A modern, fast, and intuitive API testing client. Test, debug, and organize your APIs with ease. Free and open source alternative to Postman. Offers a clean, intuitive interface, lets you organize your requests into collections, making it easy to save, reuse, and share complete workflows across projects and teams. Security is built in by default. And when it comes to speed, every request is optimized for performance, delivering responses in milliseconds.

[Other] Keep coding, We build your portfolio Boost your graduates' employability with automated portfolios powered by GitHub. Build your own portfolio and update it regularly and automatically directly from your GitHub Activity

[DevOps] Real-time hosting with instant rollbacks and team sync. Free cloud hosting platform for WordPress, Docker containers, Node.js, Python, Go, PHP & more. One-click deploy, automatic SSL, databases, and GitHub integration.

[Other] Super fast online FEM analysis for beams and frames Nodus5 is a browser-based finite element analysis tool for structural engineers. Design steel and timber frames with Eurocode checks, P-Delta analysis, and auto-design — no installation required.